Apple has cjanged its identification procedure to give users of
iCloud, iTunes and App Store users extra protection from hackers.

The feature, which is initially being rolled out as an option in
the US, UK, Ireland, Australia and New Zealand, will mean that when
an Apple customer signs into their account, as well as providing
their Apple ID password, they will have to enter a unique code in
order to prove they really are the account holder. The unique code
is sent via SMS to the user's registered mobile phone or can be
sent via the Find My Phone app.

The system will replace the current system that prompts users to
answer security questions when logging in from an unfamiliar IP
address or when claiming to have lost their passwords.

Google has also employed a similar system on its Gmail accounts for
a number of years.